RMI security issue in websphere

Hi, I am getting below exception , also I am using policy file which sets to all permissions, I did see some post on the same site to fix this but not able to see now, i think this is something relatd to websphere. I did set the things like..

in server I am running rmiregistry first and then the following command to run the programjava -Djava.rmi.server.hostname=ccAPS -Djava.security.policy=c:\ccAP\filetransfer\policy.txt com.filetransfer.FileServer

No, I did checked that, if you see the below part of the exception it is telling something about the security manager.. I saw a reply some where on your site earlier and that I am not able to find out now, what that raply says was something about the new security manager.. i do not remember much.. but it was some thing about that security manager part...

Plz help.. also do i need to unset the classpth in the rmiregistry window before starting the rmiregistry.... or where do i need to set the classpath as exzception clearly says it is not able to find some class. is this on client side or on the server side....